TPS Adjustment

Reply Subscribe

Thread Tools

Search this Thread

Dec 18, 2002 | 07:11 AM

fcarruth

Thread Starter

Elder User

Joined: Oct 2002

Posts: 573

Likes: 0

From: Medina, Tn.

TPS Adjustment

I replaced my TPS a couple of weeks ago and just read on a POST that it needs to be adjusted between .95V and .99V when hot and 4V at WOT. What is the best way to adjust it and what is WOT ? Chilton, Haynes and Mitchell don't really tell you anything other than it needs to be adjusted. I have a new TB gasket so it wouldn't be hard to take it off and put it back on a few times since it's not brittle yet.

Thanks for the help and Happy Holidays to All ! :-X12

Dec 18, 2002 | 07:39 AM

steve83

Post Fiend

Joined: Nov 2002

Posts: 9,987

Likes: 7

From: Memphis, TN

TPS Adjustment

Wide Open Throttle

Later ones aren't adjustable, but I think your '89 uses the kind with slotted screw holes. Just loosen the screws and turn the TPS slightly while monitoring the voltage on a meter. Haynes gives the pinout & procedure.

Dec 18, 2002 | 04:43 PM

Steve0

Junior User

Joined: Dec 2002

Posts: 73

Likes: 0

TPS Adjustment

For the older ones you can take a dremel tool and slot the screw holes for adjustment.

Steve

Dec 18, 2002 | 06:14 PM

NJbronco138

Senior User

Joined: Dec 2002

Posts: 288

Likes: 0

From: New Jersey

TPS Adjustment

would you have to adjust the TPS sensor on a 91 or is it preset?

Dec 18, 2002 | 06:48 PM

Flash

Posting Guru

Joined: Jul 2001

Posts: 1,914

Likes: 1

TPS Adjustment

My 91 EB,302 does not have an adjustment.

Dec 18, 2002 | 07:05 PM

NJbronco138

Senior User

Joined: Dec 2002

Posts: 288

Likes: 0

From: New Jersey

TPS Adjustment

So it should be the same on a 351W?

Dec 19, 2002 | 06:45 AM

gregdatech2

Freshman User

Joined: Mar 2002

Posts: 30

Likes: 0

From: tulsa usa!

TPS Adjustment

If the TPS has slots on it, then its adjustable. If it doesnt, it isnt. In the case of a non-adjustable TPS, if it reads out of spec at idle and wot, then its bad, and needs to be replaced. No sense in dremeling it, since theres something wrong internally. Certain years were adjustable, usually in older models. If the 5.0l truck was adjustable, more then likely, the 5.8l will be too.